Hoisting apparatus.



T. 0. WERNER.

HOISTING APPARATUS. APPLICATION FILED MAY3, 1909.

958,049. Patented May 17, 1910.

liNlT THOMAS ODEN'WELDER VIERNEl-R, OF BANGOR, PENNSYLVANIA.

HOISTING APPARATUS.

To all whom it may concern:

Be it known that I, THOMAS ODENwnL- DER VERNER, a citizen of the UnitedStates. residing at Bangor, in the county of Northampton and State ofPennsylvania, have invented a new and useful Hoisting Apparatus, ofwhich the following is a specification.

This invention relates to that class of hoisting apparatus characterizedby a friction drum which is thrown into and out of gear by a lateralsliding movement on its shaft.

The object of the present invention is to provide an improved mechanismfor moving the drum along the shaft for the purpose stated, saidmechanism being designed to reduce friction to a minimum, and also toprovide improved means for actuating said mechanism.

lVith the foregoing objects in View the invention consists in the novelconstruction and arrangement of parts to be hereinafter described andclaimed, reference being had to the drawing hereto annexed forming apart of this specification in which Figure 1 is an elevation of theapparatus with parts broken away showing the application of theinvention. Fig. 2 is an enlarged sectional detail of the mechanism formoving the drum laterally on its shaft. Figs. 3 and 4 are face views ofthe antifriction members to be hereinafter described. Fig. 5 is aperspective view of the push pin hereinafter referred to.

Referring more particularly to the drawing, 5 denotes a pair of bearingstandards which support the shaft 6 on which the drum 7 is mounted. Thedrum is loose on the shaft and is adapted to be operatively connectedthereto by being slid laterally thereon so as to bring its friction rim8 into engagement with the friction surface 9 on a gear 10 made fast tothe shaft, the drum thus being made to rotate with the shaft when thetwo friction clutch members are set. The shaft is driven by a pinion(not shown) mounted on or geared to the crank shaft of the engine.

At 11 is shown a pin for sliding the drum 7 along the shaft to set theclutch members. This pin works in a bore 12 of a bearing casting 13mounted 011 one of the standards 5. The casting is provided with anopening 14 through which a suitable lubricant may be introduced, andsaid opening is provided with a hinged closure 15. In orderSpecification of Letters Patent.

Application filed May 3, 1909.

Patented May 17, 1911). Serial No. 493,637.

to prevent the lubricant from working out of the bore, one end thereofis provided with a stufling box 16 through which the pin 11 extends. Thestuiiing box contains a suitable packing 17 which is compressed by meansof a gland 18 clamped to the stuffing box by bolts 19. In the bore 12 isalso mounted a pair of disks 20 and 21. The disk 20 has one of its facesin engagement with the inner end of the pin 11, and said face contains atransverse groove 22 engageable by the inner end of the pin, said endbeing shaped to fit the groove, whereby the disk is made to rotate withthe pin when the drum is in gear. The disk 21 has its opposite facesprovided with a plurality of radially extending grooves 23 which are forthe purpose of receiving a lubricant. V-Yithin the bore 12 is mounted athird disk indicated at 2% from one face of which projects a stem 25.This stem extends through a reduced portion 26 of the bore 12 and isheld against rotation by a key 27 or other suitable means. The stem ishowever free to slide in the bore 26, the keyway being of sufficientlength to permit this sliding movement. The disk 21 fits snugly betweenthe disks 20 and 24;, and inasmuch as the rear end of the pin 11 is incontact with the disk 20, it will be seen that upon sliding the stem 27forwardly, the pin will also be pushed forwardly, and as said pin slidesthe drum along the shaft the clutch members are set into drivingcontact.

The means for operating the stem 27 comprise a lever 28 fulcrumed at 29to a bracket: arm projecting from the casting 13, and carrying a pin 30adapted to be brought into contact with the outer end of the stem, saidstem being concaved in order that a better contact may be made. The pin30 is screwthreaded and screws into an opening in the lever whichpermits the necessary adjustment. The pin is held at adjustment by meansof a jam nut 31. On the casting 13 is another bracket arm 32 to which isfulcrumed a second lever 33 which is connected to the lever 28 by a link34. By means of this arrangement of levers and the link, the pin 30 willbe made to push against the stem 27 upon swingingthe lever 33 upwardly,a suitable operating lever 'being connected thereto at 35.

The connection between the pin 11 and the drum 7 may be made in variousways. Fig. 1 shows one form of connection. The

pin extends into an axial bore 36 made in the end of the drum shaft 6,and is engageable with key 37 mounted in a slot 38 in said shaft.Between the key and the end of the drum is a collar 39. The motion ofthe pin when it is pushed forwardly as stated, is communicated to thedrum through the key and the collar. Any other suitable connection maybe provided, the same not forming a part of the present invention.

By the herein described arrangement of parts, the pin 11 is easilyactuated, and the arrangement of parts within the bore 12 reducesfriction to a minimum. The disks 20 and 24 will be of cast steel, andthe disk 21 will be of bronze.

hat is claimed is:

1. The combination with friction clutch members, of means for settingsaid members in driving contact comprising a bearing, a pin rotatablyand slidably mounted therein, and engageable at one end with one of theclutch members, a pair of disks mounted in the bearing, one of saiddisks being connected to the pin to rotate therewith, an operatingdevice engageable with the other disk, and a disk interposed betweensaid disks.

2. The combination with friction clutch members, of means for settingsaid members in driving contact comprising a bearing, a pin rotatablyand slidably mounted therein, and engageable at one end with one of theclutch members, a pair of disks mounted in the bearing, one of saiddisks being connected to the pin to rotate therewith, and the other diskbeing slidably mounted in the bearing, and held against rotary movement,

an operating device engageable with the last mentioned disk, and a diskinterposed between said disks.

3. The combination with friction clutch members, of means for settingsaid members in driving contact comprising a bearing, a pin rotatablyand slidably mounted therein, and engageable at one end with one of theclutch members, a pair of disks mounted in the bearing, one of saiddisks being connected to the pin and rotatable therewith, a stemprojecting from the other disk, an operating device engageable with thestem, and a disk interposed between the aforesaid disks.

4. The combination with friction clutch members, of means for settingsaid members in driving contact comprising a bearing, a pin rotatablyand slidably mounted in the bearing, and engageable at one end with oneof the clutch members, a lever fulcrumed on the bearing, and carrying apin, a pair of disks mounted in the bearing, one of said disks beinggrooved to receive the end of the pin, a stem projecting from the otherdisk and engageable by the pin carried by the lever, means for holdingthe stem against rotation, and an intermediate disk having its oppositefaces grooved.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signa ture in the presence of two witnesses.

THOMAS ODENWELDER. WERNER.

Witnesses:

W. H. LINDEMAN, FLORENCE C. BROWN.

